Question: STUDENTS(STUDENT_ID, LAST_NAME, FIRST_NAME) CLASSES(STUDENT_ID COURSE_NUMBER SECTION) Given the relation in course database above, which of the following queries in Relational Algebra represents the following English

STUDENTS(STUDENT_ID, LAST_NAME, FIRST_NAME) CLASSES(STUDENT_ID COURSE_NUMBER SECTION) Given the relation in course database above, which of the following queries in Relational Algebra represents the following English query: What are the last names of all of the students? ONTSTUDENTS(LAST_NAME) STUDENTS CLASSES None of these answers is correct STUDENTS (LAST_NAME} OMLAST NAME(STUDENTS)

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